Search results for "PSU"
showing 10 items of 678 documents
Reconfigurable DNA Origami Nanocapsule for pH-Controlled Encapsulation and Display of Cargo
2019
DNA nanotechnology provides a toolbox for creating custom and precise nanostructures with nanometer-level accuracy. These nano-objects are often static by nature and serve as versatile templates for assembling various molecular components in a user-defined way. In addition to the static structures, the intrinsic programmability of DNA nanostructures allows the design of dynamic devices that can perform predefined tasks when triggered with external stimuli, such as drug delivery vehicles whose cargo display or release can be triggered with a specified physical or chemical cue in the biological environment. Here, we present a DNA origami nanocapsule that can be loaded with cargo and reversibl…
Gypsum karst systems of southern-central Sicily (southern Italy) as powerful markers in geomorphological studies
2011
Lapsen siirtymä esiopetuksen toimintakulttuuriin : lasten näkemyksiä esiopetuksesta ja esikoululaisuudesta
2011
Holopainen, Katri. 2011. LAPSEN SIIRTYMÄ ESIOPETUKSEN TOIMINTAKULTTUURIIN. Lasten näkemyksiä esiopetuksesta ja esikoululaisuudesta. Varhaiskasvatustieteen pro gradu –tutkielma, Jyväskylän yliopisto, Kasvatustieteiden laitos, Varhaiskasvatuksen yksikkö. 124 sivua. Tutkimuksen aiheena oli tarkastella lapsen siirtymää esiopetuksen toimintakulttuuriin. Tehtävänä oli selvittää lasten käsityksiä esiopetuksesta ja siihen siirtymästä. Lisäksi tutkimuksessa tarkasteltiin, miten esikoululaisuus näyttäytyi lapselle, ja kuinka esikoululaisuus rakentui siinä kulttuurisessa kontekstissa, jossa lapsi elää. Lapsen toiminta ympäristöönsä aktiivisena osallistujana oli tutkimuksen tärkeä lähtökohta. Ensimmäin…
Children's participation and participating children : factors influencing attendance to child societies, and justifications for children's participat…
2016
The aim of the research was to find the justifications for children’s participation used by children and workers at World Vision Finland’s programs in Sri Lanka, the childhood images of the justificationsand thefactors influencing children’s attendance to children’s clubs. Ten children and ten adults were interviewed in 2015. From the data,14 justifications for participation were found through phenomenographic data analysis. These were divided into four head categories. Data based content analysis resulted in 13 factors influencing children’s attendance. These were divided into six head categories. The theoretical framework for participation justifications and childhood images consisted of …
Preliminary checklist of the Italian gypsophilous flora
2016
The richness and uniqueness of the flora growing on gypsum substrates in Italy is known since the XIX century (Macchiati, 1888). Furthermore, the concept of plant gypsophily can be defined as the exclusiveness (or virtually exclusiveness) for living in gypsum outcropping rocks. Thus only those plant species, which show preference – or even exclusivity - for gypsum substrates, would be classified as gipsophilous (Mota et al., 2011). The main aim of this research has been the elaboration of a checklist of the Italian gypsophilous flora. The study was made possible through international collaboration between the "Mediterranea" University of Reggio Calabria (Italy) and the University of Almería…
Molecular insights into shellac film coats from different aqueous shellac salt solutions and effect on disintegration of enteric-coated soft gelatin …
2014
The purpose of this investigation was to study the effect of using different salts of shellac on the disintegration properties of shellac-based enteric coatings. In the last two decades, shellac has been increasingly used as an aqueous solution for enteric coating purposes, with the ammonium salt being the form typically used. Little investigation has been performed on using other salts, and therefore, this was the focus of our work. Enteric coatings, based on different shellac salts (ammonium, sodium, potassium and composite ammonium-sodium), were applied onto soft gelatin capsules. Disintegration testing of the coated soft gelatin capsules showed that alkali metal salts promote faster dis…
Viedās polimēru struktūras mikrokapsulētās pildvielas stabilitāte ultravioletā starojuma ietekmē
2020
Polimēriem ir iespējams pievienot mikrokapsulas ar aktīvu pildvielu, piemēram termohromisko vai fotohromisko, iegūstot viedo materiālu ar sensorām funkcijām. Šādu mikrokapsulu pildvielu sastāvā ir krāsvielas, kas degradējas, jeb zaudē krāsas piesātinājumu ultravioletā (UV) starojuma ietekmē, jo starojuma enerģija destruktīvi ietekmē krāsvielu molekulu saites. Tātad līdz ar viedas funkcijas paradīšanas materiālam, to lietojuma iespējas paliek atkarīgas no UV starojuma klātbūtnes. Darba mērķis ir izvērtēt termohromisko un fotohromisko mikrokapsulu pildvielu krāsu degradēšanos ultravioletā starojuma ietekmē. Darba gaitā bija izgatavoti polimēra paraugi, kas bija pildīti ar termohromisko un fot…
Tīkla gaidīšanas laika samazināšana, lietojot pārklājuma tīklus un tunelēšanu
2022
Pārklājuma tīkli nodrošina iespēju izmantot alternatīvu ceļu tam, kuru piedāvā interneta pakalpojumu sniedzēji. Alternatīvā ceļa izvēle ļauj veikt optimizācijas maršrutēšanas ceļā, lai pēc iespējas vairāk samazinātu gaidīšanas laiku. Svarīgs pārklājuma tīkla izveides aspekts ir iespējamās maršrutēšanas un iekapsulēšanas tehnoloģijas. Maģistra darba galvenais mērķis ir izveidot efektīvu pārklājuma tīklu, kuru var izmantot, lai veiktu gaidīšanas laika samazināšanu. Darba gaitā tika apskatītas jaunākās tendences pārklājuma tīklos, apkopoti potenciālie maršrutēšanas un iekapsulēšanas protokoli. Balstoties uz veiktā iekapsulēšanas un maršrutēšanas tehnoloģiju apskata un salīdzinājuma, tika izplā…
Iloisia lapsia Onnelassa : lapsuus ja perhe-elämä TV-mainoksissa
1997
Solution and recrystallisation processes and associated landforms in gypsum outcrops of Sicily
2003
Abstract Four small areas of Messinian (Upper Miocene) age gypsum, outcropping in western Sicily, are described. Messinian age evaporites are found in Sicily over a 1000-km 2 area. Here, gypsum outcrops extensively as a consequence of soil erosion induced by human impact. Geomorphological maps show how the rocky surfaces are characterized by a wide range of forms. There are large, medium, small, and microsized forms, which can be identified as belonging to different morphotypes. The morphotypes can be classified into two main categories: those that originated by solution and those that originated through recrystallisation. Four areas, illustrated by geomorphological maps, were specifically …